Please let me check OK or ploblem of TPS40210.
Caused by customer's layout space, DIS/EN is open.
But necessary to ON/OFF control, they thinking below circuit.
※FET ON/OFF control between Vin and Inductor.
①FET:ON
→TPS40210 normal operation
②FET:OFF
→When VFB is being 0V, TPS40210 is shutdown
Is this circuit have no problem?
Best regards,
Satoshi